CN213456018U

CN213456018U - Waterproof testing arrangement that DV used

Info

Publication number: CN213456018U
Application number: CN202022017954.7U
Authority: CN
Inventors: 许素强; 王诠富
Original assignee: TIANHAN TECHNOLOGY (WUJIANG) CO LTD
Current assignee: TIANHAN TECHNOLOGY (WUJIANG) CO LTD
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-15
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a waterproof testing arrangement that DV used, including compressed air source, confined space, pipeline, ooff valve, air-vent valve and barometer, confined space is used for holding DV machine, the pipeline is used for the intercommunication compressed air source with confined space, the ooff valve with the air-vent valve is established ties on the pipeline, the barometer with the confined space intercommunication is in order to detect atmospheric pressure in the confined space, confined space is in DV machine is put into it back and is pressurized to first atmospheric pressure value, confined space atmospheric pressure descends to second atmospheric pressure value after a predetermined time value, DV machine is in first atmospheric pressure value with be qualified product when the difference of second atmospheric pressure value is less than or equal to a default. The scheme can improve the detection efficiency and the quality reliability of finished products, can also reduce the rejection rate of unqualified products, and reduces the production cost.

Description

Waterproof testing arrangement that DV used

Technical Field

The utility model relates to a DV equipment technical field, specific is a waterproof testing arrangement that DV machine was used.

Background

With the development of science and technology, people have higher and higher requirements on the waterproof performance of various electronic devices. Generally, when a product such as a motion DV (Digital Video camera) is subjected to a waterproof test in industry, a finished product of the whole machine needs to be put into water with a depth of 10M, the finished product stays in the water for 30 minutes and then is taken out, then the outside of the product is wiped, and the product is opened to check whether water vapor exists inside the product, so as to judge whether the waterproof performance of the product is qualified.

When the waterproof performance of the product is tested by using the method, a bucket with the depth of 11 meters is generally needed, and the bucket is filled with water with the depth of 10.1 meters, so that the product stays in the water for a long time (generally 30 minutes). Therefore, the existing product detection method consumes long time, causes serious waste of working hours, and the finished product which is not waterproof and qualified is scrapped due to water inflow inside, thereby increasing the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the embodiment of the utility model provides a waterproof testing arrangement that DV machine was used, it is used for solving at least one in the above-mentioned problem.

The embodiment of the application discloses: a waterproof testing device for a DV (digital video) machine comprises a compressed air source, a sealed space, a pipeline, a switch valve, a pressure regulating valve and a barometer, wherein the sealed space is used for accommodating the DV machine, the pipeline is used for communicating the compressed air source with the sealed space, the switch valve and the pressure regulating valve are connected in series on the pipeline, the barometer is communicated with the sealed space to detect air pressure in the sealed space, the sealed space is pressurized to a first air pressure value after the DV machine is placed in the sealed space, the air pressure in the sealed space is reduced to a second air pressure value after a preset time value, and the DV machine is qualified when the difference value between the first air pressure value and the second air pressure value is smaller than or equal to a preset value.

Specifically, the pressure regulating valve is arranged on one side of the switch valve close to the sealed space.

Specifically, a filter for filtering gas is further arranged on the pipeline.

Specifically, the device further comprises a direct current power supply, a starting switch and a timer which are connected in sequence.

Specifically, the device further comprises an indicator light connected with the timer.

Specifically, the air source is air.

Specifically, the barometer is a digital barometer or a mechanical barometer.

Specifically, the sealed space is formed by a plurality of steel plates in a sealing connection mode, wherein at least one steel plate is provided with a window used for allowing the DV player to be placed in and taken out, the window is provided with a window door, and a sealing ring is arranged at the matching position of the window and the window door.

The utility model discloses following beneficial effect has at least:

1. the product scrap risk is reduced: compare with current mode of putting into aquatic test with the product, when the device of this embodiment was tested the product, even if the leakproofness (waterproof performance) of product is unqualified, also can not have the inside that water got into the product in this device, consequently, the inside spare part of product can not receive the influence of water, therefore can not have because of the product causes the condemned risk of product because of the leakproofness problem, has reduced unnecessary cost waste.

2. The production efficiency is improved: the product can be tested in batch, the original test method can only detect 10 parts of products in about 30 minutes, and the new test method can only detect 1 part of products in about 40 seconds, so that the production efficiency of a production line is effectively improved.

3. The test stability is strong: the test parameters of the pressure test strictly control the quality of the product.

4. Because the product does not need to be tested by adopting water in the device, the device can also test the waterproof performance of some special parts for preparing DV finished products, in other words, in the prior art, the parts can not be directly used for testing the waterproof performance of the special parts because the special parts need to be contacted with water in the test, but in the device, the object to be tested only needs to be contacted with gas, and therefore, the waterproof performance of the parts of the product can also be placed in the device for testing.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a waterproof testing device for DV machines in an embodiment of the present invention.

Reference numerals of the above figures: 1. compressing a gas source; 2. sealing the space; 3. a pipeline; 4. an on-off valve; 5. a pressure regulating valve; 6. a barometer; 7. a direct current power supply; 8. starting a switch; 9. a timer; 10. and an indicator light.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the waterproof test device for DV machine of the present embodiment may include a compressed air source 1, a sealed space 2, a pipeline 3, a switch valve 4, a pressure regulating valve 5, and an air pressure gauge 6. Wherein, the air supply can be the air, and confined space 2 is used for the DV machine product (hereinafter referred to as the product for short) of holding being treated waterproof test, and it communicates with compressed air source 1 through pipeline 3, and confined space 2's leakproofness is good. The on-off valve 4 and the pressure regulating valve 5 are connected in series on the pipeline 3, preferably, the on-off valve 4 is arranged at one end of the pipeline 3 close to the compressed air source 1, and the pressure regulating valve 5 is arranged at one side of the on-off valve 4 close to the sealed space 2. The air pressure gauge 6 is arranged on the sealed space 2 and communicated with the sealed space 2 to detect the air pressure in the sealed space 2, and the air pressure gauge 6 can be a digital air pressure gauge 6 or a mechanical air pressure gauge 6.

By means of the structure, the waterproof testing device for the DV machine in the embodiment utilizes the principle that the air mobility is the same as the water mobility (namely, the air mobility and the water mobility are both nonporous and cannot enter the sealed space 2 in the flowing process), and tests the waterproof performance of the product by introducing gas with certain pressure into the sealed space 2 with good tightness. When a product is placed in the sealed space 2, a certain amount of gas is introduced into the sealed space 2 to enable the gas pressure in the sealed space 2 to reach a first gas pressure value, then the switch valve 4 is closed and the product is allowed to stand in the sealed space 2 for a preset time value, at the moment, the gas pressure value in the sealed space 2 is observed through the barometer 6 and is defined as a second gas pressure value, if the difference value between the first gas pressure value and the second gas pressure value is smaller than or equal to a preset value, the waterproof performance of the product is qualified, and if the difference value between the first gas pressure value and the second gas pressure value is larger than the preset value, the waterproof performance of the product is unqualified. Because in this test procedure, the product that awaits measuring need not with water contact, consequently, even if there is unqualified product, its inside does not have moisture yet and gets into, and precision parts in it can not meet water and damage, just also greatly reduced condemned risk.

Preferably, a filter (not shown) for filtering the gas may be further disposed on the pipeline 3 for communicating the compressed gas source 1 and the sealed space 2, and the filter may be disposed on a side of the on-off valve 4 adjacent to the compressed gas source 1. The filter can filter impurity, the profit in the gas, improves gaseous cleanliness factor, reduces impurity, the profit in the gas and gets into the inside risk of product, further reduces the risk of scrapping of the unqualified product of waterproof performance.

Preferably, as shown in fig. 1, the apparatus of this embodiment may further include a dc power supply 7, a start switch 8 and a timer 9 connected in sequence. The start switch 8 and the timer 9 may be provided on the outer side wall of the sealed space 2. Further, an indicator light 10 may be connected to the timer 9, and the indicator light 10 may be an LED light. When a product is placed into the sealed space 2 and the gas introduced into the sealed space 2 reaches a first air pressure value, the starting switch 8 is closed, the timer 9 starts timing, the indicator light 10 is turned on, when the timer 9 times to a preset time value, the timer 9 can be disconnected, the indicator light 10 is turned off, a person receives a signal indicating that the indicator light 10 is turned off and then reads a second air pressure value on the air pressure gauge 6, and whether the product is a qualified product or not is judged through the difference value between the second air pressure value and the first air pressure value. By adopting the scheme, the timing device can assist personnel in timing so that the personnel can master the test ending time in time and improve the test accuracy.

Specifically, the sealed space 2 of the present embodiment is formed by hermetically connecting a plurality of steel plates, and may have a square or rectangular parallelepiped structure. Wherein, at least one steel plate is provided with a window for putting in and taking out the DV player, the window is provided with a window door matched with the window, and the matched part of the window and the window door is provided with a sealing ring for preventing gas leakage.

In summary, the waterproof testing device for DV machine of this embodiment has the following advantages:

The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A waterproof testing device for a DV (digital video) machine is characterized by comprising a compressed air source, a sealed space, a pipeline, a switch valve, a pressure regulating valve and a barometer, wherein the sealed space is used for accommodating the DV machine, the pipeline is used for communicating the compressed air source with the sealed space, the switch valve and the pressure regulating valve are connected in series on the pipeline, the barometer is communicated with the sealed space to detect air pressure in the sealed space, the sealed space is pressurized to a first air pressure value after the DV machine is placed in the sealed space, the air pressure in the sealed space is reduced to a second air pressure value after a preset time value, and the DV machine is qualified when the difference value between the first air pressure value and the second air pressure value is smaller than or equal to a preset value;

the pipeline is also provided with a filter for filtering gas;

the device also comprises a direct current power supply, a starting switch and a timer which are connected in sequence;

the barometer is a digital display barometer or a mechanical barometer;

the sealed space is formed by hermetically connecting a plurality of steel plates, wherein at least one steel plate is provided with a window for the DV player to be put in and taken out, the window is provided with a window door, and a sealing ring is arranged at the matching part of the window and the window door.

2. The water resistance testing device for DV instruments according to claim 1, wherein said pressure regulating valve is provided on a side of said on-off valve close to said sealed space.

3. The water resistance testing device for DV machines according to claim 1, further comprising an indicator light connected to said timer.

4. The water-proof test device for DV machine according to claim 1, wherein said air source is air.